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South bend 9a feed change lever
- Thread starter Jordan429
- Start date
- Replies 12
- Views 1,319
David Ferguson
Cast Iron
- Joined
- Aug 13, 2008
- Location
- Paso Robles, CA
I didn't think the SB 9A had a powered cross-feed.
mcruff
Stainless
- Joined
- Mar 22, 2004
- Location
- Albertville, Alabama
The 9c is the only version that doesn’t have powered cross feed. Sometimes when it sticks try turning your cross feed dial handle while your trying to engage it. Otherwise you may need to oil it up.
mattthemuppet
Stainless
- Joined
- Apr 22, 2016
- Location
- San Antonio
half nut lever interlock getting in the way?
mcload
Hot Rolled
- Joined
- Nov 5, 2007
- Location
- Houston, Texas
If you are talking about the clutch "star" knob on the front of the saddle that engages the clutch, then it is held on by a slotted machine screw with
left-hand threads. If you are talking about the mechanism itself on the inner side of the apron, then you will more than likely need to remove the apron to fix it.
At the end of the clutch shaft (opposite the knob) is a set of two semi-circular discs that fit into the spring-loaded shaft itself. If these parts are what fell out, then yes, you will have to remove the apron to reinstall them.
I can't imagine these fell out on their own. This would only happen if the star knob was removed and the shaft pushed inward, releasing the discs.
But I think the oil reservoir shield will keep the shaft from being pushed inward to the point of the discs falling out. Is your reservoir plate in place?
This may also have something to do with the feed lever not cooperating.
I would highly recommend your getting the ILION book for the Model 9A. You'll need it eventually, if not for this issue.
Good luck.
PS: Just read that it fell out while on the bench; disregard your need to remove it...it already is.
PMc
View attachment 328027
Last edited:
mcload
Hot Rolled
- Joined
- Nov 5, 2007
- Location
- Houston, Texas
I've done two 9" lathe rebuilds and neither had a clip on that shaft for the "expanders". I checked the Steve Brooks manual and he does mention that
"on some models there is a wire retaining clip on the expanders".
So I guess you are right about that. Unfortunately, I don't know what they look like nor how they fit.
By the way, while disassembling my latest lathe, I did find a strange clip, but I don't remember where I found it.. It is very small and very light,
and thought it to be some misc piece from another owners project. Perhaps I'll post a photo of it later on.
Sorry I couldn't help.
mcload
Hot Rolled
- Joined
- Nov 5, 2007
- Location
- Houston, Texas
Unknown Clip
Here is a photo of an unknown clip I found while disassembling my 9" Model B (1957); I don't know if it was used
on the clutch unit or not. It was not on the assembly when I took it apart.
Maybe someone knows.
View attachment 328061 View attachment 328062 View attachment 328063
Here is a photo of an unknown clip I found while disassembling my 9" Model B (1957); I don't know if it was used
on the clutch unit or not. It was not on the assembly when I took it apart.
Maybe someone knows.
View attachment 328061 View attachment 328062 View attachment 328063
